BIC, Athena, or Phase Tech will blow your buddy's Bose system out of the water. That said, they're all quite different. The BIC is a horn tweeter and metal woofers (very suited to HT, but maybe not quite as great for music), the Phase Techs use a poly-cone with a soft-dome tweeter, and the Athenas (if I remember correctly) use an aluminum dome tweeter and a poly woofer. They will all have their own signature sound. While all of them are good, deciding which one is right for you is not something I can do. Try to find a dealer in your area that carries the speakers you're looking for and see if you can have a listen.
Also, here's some questions that might help others out:
How big is your room?
What will this system be used for, movie and music percentages?
What kind of music do you listen to?